Genome-Wide Characterization and Analysis of R2R3-MYB Genes Related to Fruit Ripening and Stress Response in Banana (Musa acuminata L. AAA Group, cv. 'Cavendish')
文献类型: 外文期刊
第一作者: Wang, Zhuo
作者: Wang, Zhuo;Jia, Caihong;Zheng, Yunke;Lin, Qiumei;Wang, Jingyi;Liu, Juhua;Xu, Biyu;Jin, Zhiqiang;Wang, Zhuo;Jia, Caihong;Zheng, Yunke;Wang, Jingyi;Liu, Juhua;Xu, Biyu;Jin, Zhiqiang;Wang, Zhuo;Zheng, Yunke;Liu, Juhua;Jin, Zhiqiang;Yao, Xiaoming;Zhu, Zhao;Peng, Long;Cong, Xinli
作者机构:
关键词: banana; fruit ripening; stresses; WGCNA; expression analysis
期刊名称:PLANTS-BASEL ( 影响因子:4.658; 五年影响因子:4.827 )
ISSN:
年卷期: 2023 年 12 卷 1 期
页码:
收录情况: SCI
摘要: MYB is an important type of transcription factor in eukaryotes. It is widely involved in a variety of biological processes and plays a role in plant morphogenesis, growth and development, primary and secondary metabolite synthesis, and other life processes. In this study, bioinformatics methods were used to identify the R2R3-MYB transcription factor family members in the whole Musa acuminata (DH-Pahang) genome, one of the wild ancestors of banana. A total of 280 MaMYBs were obtained, and phylogenetic analysis indicated that these MaMYBs could be classified into 33 clades with MYBs from Arabidopsis thaliana. The amino acid sequences of the R2 and R3 Myb-DNA binding in all MaMYB protein sequences were quite conserved, especially Arg-12, Arg-13, Leu-23, and Leu-79. Distribution mapping results showed that 277 MaMYBs were localized on the 11 chromosomes in the Musa acuminata genome. The MaMYBs were distributed unevenly across the 11 chromosomes. More than 40.0% of the MaMYBs were located in collinear fragments, and segmental duplications likely played a key role in the expansion of the MaMYBs. Moreover, the expression profiles of MaMYBs in different fruit development and ripening stages and under various abiotic and biotic stresses were investigated using available RNA-sequencing data to obtain fruit development, ripening-specific, and stress-responsive candidate genes. Weighted gene co-expression network analysis (WGCNA) was used to analyze transcriptome data of banana from the above 11 samples. We found MaMYBs participating in important metabolic biosynthesis pathways in banana. Collectively, our results represent a comprehensive genome-wide study of the MaMYB gene family, which should be helpful in further detailed studies on MaMYBs functions related to fruit development, postharvest ripening, and the seedling response to stress in an important banana cultivar.
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